RalfK
2016-04-18 17:00:46
- #1
Hello everyone,
I have already read a lot here in the forum and in other works, but I am not really sure how to properly implement our project / plan.
Regarding the initial situation:
We have a balcony of about 35 m², under which there is currently a "free space" that we want to design as a wellness and fitness room (including a sauna). This room is currently enclosed by 3 walls. One side wall (uninsulated) adjoins our driveway, the 2nd wall is the partition wall to the neighbor (between the two walls there is about 5 cm mineral wool insulation). The 3rd wall is basically our cellar exterior wall. The 4th wall is currently still open to the garden and is to be closed with a window and tilt-and-turn access. The floor consists of a gravel layer about 12–15 cm thick (washed, grain size 32), above it PE foil and then 15 cm reinforced concrete. The ceiling (towards the balcony) consists of 15 cm reinforced concrete with bitumen sheets on top (for waterproofing), then EPDM foil and green roofing with a small viewing corner.
I now want to insulate the floor and have the following considerations about it:
1. On the concrete floor Knauf Katja sealing membrane, pulled up 10 cm on the sides (with the appropriate connection strips), or is a thick PE foil better?
2. 8 cm insulation (Styropur or Styrodur or is there something better here?)
3. 18 mm OSB3 subfloor board, glued floatingly together (or should it be thicker instead?)
4. PVC floor covering
5. Must a vapor barrier still be installed with this setup, if it makes sense? If yes, then probably between the OSB board and the insulation...
The exterior wall facing our driveway should receive insulation with insulation panels (similar to ETICS) either from the inside or outside, and I also want to insulate the ceiling with 8 cm insulation and cover it underneath with gypsum plasterboards. Here again the question: would a "rigid" insulation (Styropur / Styrodur etc.) or mineral wool with a vapor retarder be better?
Many thanks for your information / tips
Ralf
I have already read a lot here in the forum and in other works, but I am not really sure how to properly implement our project / plan.
Regarding the initial situation:
We have a balcony of about 35 m², under which there is currently a "free space" that we want to design as a wellness and fitness room (including a sauna). This room is currently enclosed by 3 walls. One side wall (uninsulated) adjoins our driveway, the 2nd wall is the partition wall to the neighbor (between the two walls there is about 5 cm mineral wool insulation). The 3rd wall is basically our cellar exterior wall. The 4th wall is currently still open to the garden and is to be closed with a window and tilt-and-turn access. The floor consists of a gravel layer about 12–15 cm thick (washed, grain size 32), above it PE foil and then 15 cm reinforced concrete. The ceiling (towards the balcony) consists of 15 cm reinforced concrete with bitumen sheets on top (for waterproofing), then EPDM foil and green roofing with a small viewing corner.
I now want to insulate the floor and have the following considerations about it:
1. On the concrete floor Knauf Katja sealing membrane, pulled up 10 cm on the sides (with the appropriate connection strips), or is a thick PE foil better?
2. 8 cm insulation (Styropur or Styrodur or is there something better here?)
3. 18 mm OSB3 subfloor board, glued floatingly together (or should it be thicker instead?)
4. PVC floor covering
5. Must a vapor barrier still be installed with this setup, if it makes sense? If yes, then probably between the OSB board and the insulation...
The exterior wall facing our driveway should receive insulation with insulation panels (similar to ETICS) either from the inside or outside, and I also want to insulate the ceiling with 8 cm insulation and cover it underneath with gypsum plasterboards. Here again the question: would a "rigid" insulation (Styropur / Styrodur etc.) or mineral wool with a vapor retarder be better?
Many thanks for your information / tips
Ralf